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龚嘴水电站位于四川大渡河中下游,装机容量70万千瓦,是一个以发电为主、兼顾木材过坝的工程。大坝主要泄洪建筑物为三孔溢流坝和两个冲沙底孔(见图1)溢流坝下游的消力塘宽80.5～72米,其左侧是漂木道,右侧为地面厂房左端墙和尾水渠分水墙。电站自1971年运行以来,陆续发现消力塘周围建筑物及其基础有规模不同的冲刷坑。据
Gongzui Hydropower Station is located in the middle and lower reaches of Dadu River, Sichuan Province, installed capacity of 700,000 kilowatts, is a power-based, taking into account the timber through the dam project. The main flood discharging dam of the dam is a three-hole overflow dam and two red sand bottom holes (see Fig. 1). The lower part of the power dissipation pond downstream of the overflow dam is 80.5 ~ 72 meters wide. The left side is driftwood and the right side is the ground The left wall and tailrace drainage wall. Since the operation of the power station in 1971, one after another found that the structures around the Xiaotangtang and scouring pits of different sizes are based on them. according to